Derg-ast



(N0 Model.)

F- W. PENDERGAST.

CARRIAGE SEAT. No. 280,509. Patented July 3, 1883.

WITNESSES INVENTOR flgjfdw V ,5! I h W I ATTORNEYS.

UNITED STATES PATENT OFFICE.

FREDERIO W. PENDERGAST, OF ROCHESTER, VERMONT.

CARRIAGE-SEAT.

SPECIFICATION forming part of Letters Patent No. 280,509, dated July 3, 1883.

Application filed April 9, 1883. (No model.)

T all whom it may concern: thereof near the ends, the said spring-arms Be it knownthat I, FREDERIO W. PEN- being bent therefrom around the ends of t] DERGAST, of Rochester, in the county of Windback and extended forward alongside of tl sor and State of Vermont, have invented a seat ends h, near to the front of them, whr

new and Improved Spring-Backfor Carriage they are coiled suitably at Z for the proper ela and Sleigh Seats, of which the following is a ticity, and then connected with the seat by full, clear, and exact description. screw-threaded portion, m, extending throug My invention relates to that class of backs the seat and secured by anut, n, or equivale for carriage and sleigh seats which are supdevice.

re ported in position by means of spring-arms; The bars f are to be detachably secured and it consists of the combination and arrangethe seat for being readily taken off when 1 ment of parts, substantially as hereinafter fully quired for shifting the back from one seat set forth and claimed. I another.

Reference is to be had to the accompanying The seat-back may be plain or upholstere I 5 drawings, forming part of this specification, in as may be preferred, and it may be made high which similar letters of reference indicate corthan ordinary backs in consequence of tl responding parts in all the figures. yielding arrangement,thereby affordinghigh Figure 1 is a perspective view of a carriage support to the back of the rider, besides bei:

V or sleigh seat having a spring-back contrived also yielding thereto.

according to my invention. Fig. 2 is an end I desire it to be understood that the frai elevation of a portion of the seat with a part of the seat-back is to be made either of wo in section. Fig. 3 is a rear elevation of a poror metal, at the will of the constructer. tion of the seat-back, partly in section, the lat- Having thus described my invention, wha ter showing the contrivance of the pivot-joint. claim as new, and desire to secure by Lett( 2 5 The lower edgeof'the seat-back a terminates Patent, is-

in a bar, I), which has a metal cap, 0, on each The combination, with the back a, provid end, from which a pivot, d, projects, preferawith pivots d at its lower corners, and the b2 bly near the lower side, to support the seatf, having bearings e, and fastened to the se back in bearings e, formed on the rear ends 9, of the spring-arms 2', connected to the re of bars f, extending across the top of the seat side of the back a by eye-studs j, and be 9 to the front, and being suitably bolted to it around the ends of the back, extended alo for holding the pivots. and below the ends of the seat, and coil For holding up the seat-back against the thereat and connected to the seat, the ends rear ends of the end pieces, h, of the seat, so as said arms being screw-threaded, substantia to allow the back to yield to the thrusts of the as shown and described, and for the purp4 seat and afford comfortable support to the set forth.

' rider, I employ springarms '0' of suitable strong spring-wire,whichIconnettotheback, FREDERIO PENDERGAST about midwaybetween the top and bottom, by Witnesses: 7

4o eye-studs j, screwed into or otherwise attached HARMON 0. SMITH,

to the back, and projecting from the hind side ALBERT F. HUM-PHREY. 

